		(function($) {
			$.fn.dragDiv = function(divWrap) {
				return this.each(function() {
					var $divMove = $(this); //鼠标可拖拽区域
					var $divWrap = divWrap ? $divMove.parents(divWrap) : $divMove; //整个移动区域
					var mX = 0,
						mY = 0; //定义鼠标X轴Y轴
					var dX = 0,
						dY = 0; //定义div左、上位置
					var isDown = false; //mousedown标记
					if(document.attachEvent) { //ie的事件监听，拖拽div时禁止选中内容，firefox与chrome已在css中设置过-moz-user-select: none; -webkit-user-select: none;
						$divMove[0].attachEvent('onselectstart', function() {
							return false;
						});
					}
					$divMove.mousedown(function(event) {
						var event = event || window.event;
						mX = event.clientX;
						mY = event.clientY;
						dX = $divWrap.offset().left;
						dY = $divWrap.offset().top;
						isDown = true; //鼠标拖拽启动
					});
					$(document).mousemove(function(event) {
						var event = event || window.event;
						var x = event.clientX; //鼠标滑动时的X轴
						var y = event.clientY; //鼠标滑动时的Y轴
						if(isDown) {
							$divWrap.css({
								"left": x - mX + dX,
								"top": y - mY + dY
							}); //div动态位置赋值
						}
					});
					$divMove.mouseup(function() {
						isDown = false; //鼠标拖拽结束
					});
				});
			};
		})(jQuery);